MAC-10 | Derailment: trade up odds, float & price

Restricted SMGs skin from the Train 2025 Collection. Float range 0.00 – 0.70, available in Factory New, Minimal Wear, Field-Tested, Well-Worn, Battle-Scarred. You can get it from a trade up of 10 Mil-Spec skins of the Train 2025 Collection with a 33.3% chance per contract.

MAC-10 | Derailment price by wear

Wear	Float	Price	StatTrak™	Souvenir
Factory New (FN)	0.000 – 0.070	$10.18	—	$15.63
Minimal Wear (MW)	0.070 – 0.150	$5.03	—	$8.23
Field-Tested (FT)	0.150 – 0.380	$2.18	—	$3.23
Well-Worn (WW)	0.380 – 0.450	$2.18	—	$4.80
Battle-Scarred (BS)	0.450 – 0.700	$1.70	—	$1.98

Souvenir = the Souvenir version of this skin, same price rule as the Price column. Souvenir prices depend on the stickers the item carries, so this is a floor, not the price of a particular item.

Price check, 2026-11-11: the cheapest MAC-10 | Derailment is Battle-Scarred at $1.27 on Tradeit.gg. Factory New costs $7.37, 5.8× as much. On the Steam Market the Field-Tested sells for $2.18, 48% above the cheapest marketplace listing.

How to trade up into the MAC-10 | Derailment

Put 10 Mil-Spec skins from the Train 2025 Collection into a trade up contract. The collection has 3 Restricted skins, so with all 10 inputs from this collection the Derailment has a 33.3% chance (the other outcomes are Zeus x27 | Charged Up, Tec-9 | Whiteout). Mixing in another collection lowers the chance in proportion to the inputs you replace.

Inputs (Mil-Spec): FAMAS | 2A2F, Glock-18 | Green Line, UMP-45 | Late Night Transit, XM1014 | Run Run Run.
Factory New result: average normalised input float ≤ 0.1000.
Minimal Wear result: average normalised input float ≤ 0.2143.
Output float: 0.00 + average × 0.70 – see the float guide.

Cheapest MAC-10 | Derailment trade ups right now

10 identical Mil-Spec inputs from the Train 2025 Collection at today’s prices. Every contract below has a 33.3% chance of this skin – open one to change floats, wear or fee.

Contract	Cost	EV	ROI	Chance of profit
10× FAMAS \| 2A2F FT Mil-Spec → Restricted	$2.50	$2.57	+2.9%	33.3%	Open in calculator
10× UMP-45 \| Late Night Transit WW Mil-Spec → Restricted	$2.00	$2.00	+0.2%	66.7%	Open in calculator
10× XM1014 \| Run Run Run BS Mil-Spec → Restricted	$1.70	$1.68	-1.0%	33.3%	Open in calculator
10× XM1014 \| Run Run Run MW Mil-Spec → Restricted	$6.50	$5.31	-18.3%	33.3%	Open in calculator
10× XM1014 \| Run Run Run FN Mil-Spec → Restricted	$27.30	$15.22	-44.3%	0.0%	Open in calculator

Steam Market prices, snapshot of 2026-09-27 (USD, before fees); the table refreshes with live prices on page load. Knives and gloves above Steam's $2,000 listing cap use the lowest marketplace price.

Build a contract for the MAC-10 | Derailment
Open in the calculator (auto-builds the cheapest contract)